Foranum'fera of Gothland. 303 



tlie soutl), so lliat tlie limestone of Hoburgen — tlie extreme 

 southern part — is on a higher horizon than that of the rest 

 of the island, and the majority that the sandstone simply 

 occupies so much of the space taken up by the shale in the 

 north. As opinions are not evidence, the proof, one way or 

 the other, will not be obtained till a bore is put down on the 

 Hoburg shore. 



The Foraminifera recorded in this paper were obtalnetl, 

 one species from the lower part of the limestone, and the rest 

 from the shales towards their upper part» 



Horizons. 



The Gothland strata range from the Monograptus-ahdXQ?, 

 (under the Llandovery) to the Downtoniau (above the 

 Ludlow *). 



The species got in the limestone may be referred to the 

 ■Aymestry, and the rest to the Wenlock horizon of England. 



Foraminifera (Remarks on the Species). 



All the specimens figured are from plump and solid indi- 

 viduals, none from cut sections of the rock, and, unless 

 otherwise stated, are enlarged 40 diameters. 



To Mr. Jose|)h Wright, F.Gr.S., of Belfast, who has devoted 

 a large part of his lifetime to the study of the Foraminifera, 

 I am indebted for piloting me through this labyrinth of 

 {small things. I make this early reference to him, as I will 

 have frequently to bring in his name in connection with 

 some of the species. I am also indebted to him for many of 

 the references. 



Hyperwnmina vagans, Biady. 

 Girvanella prohleinatica, N. & E. 



At the time (1878) Nicholson and Ederidge published 

 their first fasciculus of the Girvan fossils, they gave an excerpt 

 of a letter from Brady, this letter pointing out that G. problG^ 

 maiica resembled .//. vagans, a present-day species, and this 

 has been sustained by later investigators. ^'' Girvanella ^^ is 

 common in Gothland, so much so that two series of strata 

 have been called ^'- Girvanella-zouQS." This fossil has, how* 

 ever, to be mostly determined from cut bits of the rock; but 

 from the shales I got a number of specimens showing the 



* Dr. Munthe's Memoir ou the Strata of Southern Gothlaucl (in 

 English). 



